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Cheap flights from Phoenix Sky Harbor Intl Airport to Denver from £44

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Denver Intl are usually found in February or January, booked 62 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Sky Harbor Intl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 November 2025.

Round-trip from

£94

One-way from

£44

Popular in

June

Cheapest in

February

Average price

£135

Good one-way deal

£122 or less
United Airlines
  • United Airlines
  • 9/1-12/1
  • Nonstop
  • 3h 55m total
  • Phoenix to Denver
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Hawaiian Airlines
  • Hawaiian Airlines
  • 4/3
  • 1 total stop
  • 6h 53m total
  • Phoenix to Denver
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Highest demand for flights based on searches. 13% potential increase in price (£14 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Denver Intl.
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Find flight deals from Sky Harbor Intl to Denver

Enter your travel dates to find the best prices.

Cheapest flights from Sky Harbor Intl to Denver
Explore the most affordable flight options available from Sky Harbor Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2025.

Tue 2/1215:55PHX - DEN
1 stop8h 04mAlaska Airlines
Tue 9/1218:59DEN - PHX
1 stop5h 00mAlaska Airlines
Deal found 2/11£104
Wed 24/1213:30PHX - DEN
1 stop4h 15mSouthwest
Thu 1/107:55DEN - PHX
1 stop3h 30mSouthwest
Deal found 3/11£105
Wed 24/1215:50PHX - DEN
1 stop4h 25mSouthwest
Wed 31/1207:30DEN - PHX
1 stop4h 10mSouthwest
Deal found 1/11£109
Tue 2/1219:56PHX - DEN
1 stop23h 28mAlaska Airlines
Sat 6/1218:59DEN - PHX
1 stop5h 00mAlaska Airlines
Deal found 3/11£112
Tue 2/1216:33PHX - DEN
Nonstop1h 52mUnited Airlines
Sat 6/1219:15DEN - PHX
Nonstop2h 01mUnited Airlines
Deal found 3/11£113
Tue 23/1216:41PHX - DEN
1 stop7h 18mAlaska Airlines
Mon 5/106:00DEN - PHX
1 stop5h 50mAlaska Airlines
Deal found 3/11£126
Thu 25/1212:42PHX - DEN
1 stop6h 36mAlaska Airlines
Mon 5/118:48DEN - PHX
1 stop5h 05mAlaska Airlines
Deal found 3/11£130
Mon 24/1107:00PHX - DEN
1 stop4h 07mDelta
Mon 24/1119:28DEN - PHX
1 stop4h 59mDelta
Deal found 3/11£135
Mon 24/1118:27PHX - DEN
1 stop4h 01mDelta
Tue 2/1219:28DEN - PHX
1 stop5h 04mDelta
Deal found 3/11£135
Mon 29/1216:41PHX - DEN
1 stop7h 18mAlaska Airlines
Thu 8/112:34DEN - PHX
1 stop6h 51mAlaska Airlines
Deal found 3/11£139
Sat 22/1115:48PHX - DEN
1 stop8h 11mAlaska Airlines
Mon 24/1119:20DEN - PHX
1 stop14h 22mAlaska Airlines
Deal found 3/11£141
Thu 18/1212:32PHX - DEN
1 stop6h 46mAlaska Airlines
Tue 23/1218:48DEN - PHX
1 stop5h 05mAlaska Airlines
Deal found 4/11£142

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sky Harbor Intl to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 November 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Denver that are best for you.

Fly from

Sky Harbor Intl

Fly to

Denver

Route

Depart

Return

Price

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 9/1

16:31-18:25

Nonstop1h 54m

Denver Intl

Mon 12/1

16:05-18:06

Nonstop2h 01m

£94

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 23/12

16:41-23:59

1 stop7h 18m

Denver Intl

Mon 5/1

06:00-11:50

1 stop5h 50m

£126

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 9/1

20:07-11:38

1 stop15h 31m

Denver Intl

Sat 17/1

08:04-14:00

1 stop5h 56m

£129

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Mon 12/1

14:20-19:56

1 stop5h 36m

Denver Intl

Tue 20/1

18:14-23:31

1 stop5h 17m

£135

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sun 11/1

06:55-11:57

1 stop5h 02m

Denver Intl

Mon 19/1

18:23-00:44

1 stop6h 21m

£135

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 23/12

16:41-23:59

1 stop7h 18m

Denver Intl

Thu 25/12

18:48-15:59

1 stop21h 11m

£135

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 8/1

06:55-11:57

1 stop5h 02m

Denver Intl

Sat 17/1

18:23-22:41

1 stop4h 18m

£135

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 10/1

14:20-18:40

1 stop4h 20m

Denver Intl

Sun 18/1

18:23-22:41

1 stop4h 18m

£135

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 24/12

08:20-19:18

1 stop10h 58m

Denver Intl

Thu 1/1

18:48-11:50

1 stop17h 02m

£135

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 10/1

14:20-18:40

1 stop4h 20m

Denver Intl

Mon 19/1

18:23-00:44

1 stop6h 21m

£135

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 24 results
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Best time to book a flight from Sky Harbor Intl to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Sky Harbor Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Denver

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Use this chart to determine the optimal time to book a return flight from Sky Harbor Intl to Denver. Price data was last updated on 31 October 2025.

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Denver, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £41). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £78). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to DEN?

Find hourly flight availability from Sky Harbor Intl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 November 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 91% on flights from Phoenix Sky Harbor Intl Airport to Denver by exploring options for tickets in the morning.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from Phoenix Sky Harbor Intl?

    For a flight from Phoenix Sky Harbor Intl to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 26 inbound flights from Phoenix Sky Harbor Intl per day. 0 airlines have flights to Denver Intl from Phoenix Sky Harbor Intl on a regular basis.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Denver?

    There are many flights that can get you from Phoenix Sky Harbor Intl Airport to Denver in 1h 54m. Fly via United Airlines, Alaska Airlines, or Delta to get the fastest option. The distance between Phoenix Sky Harbor Intl Airport and Denver is about 601 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Denver one-way?

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as £51. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from Phoenix Sky Harbor Intl Airport to Denver for a low price.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Denver?

    Consider Envoy Air (100%), Air Canada (87%) or Frontier (86%) when booking your flight. These represent the most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Denver.

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Denver?

    While on average a flight from Phoenix Sky Harbor Intl Airport to Denver is generally £357, our data shows the cheapest flight currently is £85. When looking at the most popular route, (Phoenix Sky Harbor Intl - Denver Intl), you can expect to pay £222 for that flight.

  • Can I find deals for flights from Sky Harbor Intl to Denver that include hotel bookings?

    Yes. In addition to deals on Sky Harbor Intl to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sky Harbor Intl to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Denver.

  • Can I find deals for business class flights from Sky Harbor Intl to Denver?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

    Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £41). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £78). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Can Cheapflights find flights from Sky Harbor Intl to Denver with no change fees?

Yes, we can. To see specific flights from Sky Harbor Intl to Denver with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sky Harbor Intl to Denver become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Denver from Sky Harbor Intl today and book when prices fit your budget.

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